Organized at Staten Island, N.Y.,
and mustered in by Companies as follows: Companies "C"
and "D" September 18, Company "B" August 23,
Companies "A" and "E" October 2, Companies
"F," "G" and "H" October 15, Company
"L" November 18, Companies "I" and "K"
December 11 and Company "M" December 12, 1861. Eight
Companies left State for Washington, D. C., November 7, 1861.
Company "L" left December 2, and Companies "I,"
"K" and "M" December 12, 1861. Attached to
Military District of Washington, D.C., December, 1861, to May,
1862. Sturgis' Command, Military District of Washington, to January,
1863. Artillery, District of Alexandria, Va., to February, 1863.
Artillery, District of Alexandria, 22nd Army Corps, Dept. of Washington,
to April, 1863. 1st Brigade, DeRussy's Division, 22nd Army Corps,
to April, 1864. 2nd Brigade, DeRussy's Division, 22nd Army Corps,
to May, 1864. Tyler's Heavy Artillery Division, 2nd Army Corps,
Army of the Potomac, May 16-29, 1864. 1st Brigade, 1st Division,
2nd Army Corps, to June, 1865. 1st Brigade, DeRussy's Division,
22nd Army Corps, to September, 1865. (Battery "L" detached
March, 1862, and designated 34th New York Independent Battery
November, 1863. See 34th Battery for history.)

SERVICE.--Duty in the Defenses
of Washington until May, 1864. Pope's Campaign in Northern Virginia
August. 1862. Action at Bull Run Bridge, Va., August 27. Battle
of Bull Run, Va., August 29-30. Ordered to join Army of the Potomac
in the field May 15, 1864. Rapidan Campaign May-June. Spottsylvania
Court House, Va., May 18-21. Harris Farm or Fredericksburg Road
May 19. North Anna River May 23-26. On line of the Pamunkey May
26-28. Totopotomy May 28-31. Cold Harbor June 1-12. Assault at
Cold Harbor June 3. Before Petersburg June 16-18. Siege of Petersburg
June 16, 1864, to April 2, 1865. Jerusalem Plank Road June 22-23,
1864. Deep Bottom July 27-28. Mine Explosion, Petersburg, July
30 (Reserve). Deep Bottom, Strawberry Plains, August 14-18. Ream's
Station August 25. Boydton Plank Road, Hatcher's Run, October
27-28. Reconnaissance to Hatcher's Run December 9-10. Hatcher's
Run December 9. Dabney's Mills, Hatcher's Run, February 5-7, 1865.
Watkins' House March 25. Appomattox Campaign March 28-April 9.
On line of Hatcher's and Gravelly Runs March 29-30. Hatcher's
Run or Boydton Road March 31. White Oak Road March 31. Sutherland
Station and fall of Petersburg April 2. Amelia Springs April 5.
Sailor's Creek April 6. High Bridge and Farmville April 7. Appomattox
Court House April 9. Surrender of Lee and his army. March to Washington,
D.C., May 2-12. Grand Review May 23. Duty at Washington, D.C.,
until September. Mustered out at Washington, D.C., September 29,
1865, and honorably discharged from service.

Regiment lost during service
10 Officers and 204 Enlisted men killed and mortally wounded and
247 Enlisted men by disease. Total 461.